APA (7th ed.) Citation

ProQuest (Firm), Lingiardi, V., & McWilliams, N. (2017). Psychodynamic diagnostic manual: PDM-2 (Second edition.). The Guilford Press.

Chicago Style (17th ed.) Citation

ProQuest (Firm), Vittorio Lingiardi, and Nancy McWilliams. Psychodynamic Diagnostic Manual: PDM-2. Second edition. New York: The Guilford Press, 2017.

MLA (9th ed.) Citation

ProQuest (Firm), et al. Psychodynamic Diagnostic Manual: PDM-2. Second edition. The Guilford Press, 2017.